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GH-45307: [CI] Use GitHub hosted arm runner (#45308)

### Rationale for this change

GitHub hosted arm runner is available:
https://github.blog/changelog/2025-01-16-linux-arm64-hosted-runners-now-available-for-free-in-public-repositories-public-preview/

### What changes are included in this PR?

Use `ubuntu-24.04-arm` instead of self-hosted runner.

### Are these changes tested?

Yes.

### Are there any user-facing changes?

No.
* GitHub Issue: #45307

Authored-by: Sutou Kouhei <kou@clear-code.com>
Signed-off-by: Raúl Cumplido <raulcumplido@gmail.com>